High efficient conversion of CO2-rich bio-syngas to CO-rich bio-syngas using biomass char: a useful approach for production of bio-methanol from bio-oil

Xu, Yongjian; Ye, Tongqi; Qiu, Songbai; Shan, Ning; Gong, Feiyan; Liu, Yong; Li, Quanxin

doi:10.1016/j.biortech.2011.02.069

Cited by 44 publications

(6 citation statements)

References 28 publications

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“…Bio‐oil was produced by the fast pyrolysis of biomass in a circulating fluidized bed with a capacity of 120 kg h −1 of oil at our Lab . The main elemental composition of bio‐oil feedstock derived from fast pyrolysis of straw stalk contains 42.3 wt% C, 7.9 wt% H and 49.4 wt% O.…”

Section: Methodsmentioning

confidence: 99%

“…The production of light olefins from the catalytic cracking of bio‐oil or its model compounds was carried out in continuous‐flowing systems, using a quartz fixed‐bed reactor under atmospheric pressure. This system consists of a quartz tube reactor (inner diameter:30 mm; length: 400 mm), a gas feed system, a liquid feeding pump, a heater and temperature control system, a condenser and an on‐line gas analysis unit, which has been described in detail previously . Sieved zeolite catalyst powders (60–80 mesh) were held in the reactor by quartz beads.…”

Section: Methodsmentioning

confidence: 99%

“…In our previous work, attention has been paid to the production of hydrogen, bio‐syngas and biofuels from bio‐oil . The main purpose of this work is to selectively produce light olefins through the catalytic cracking of bio‐oil using magnesium modified HZSM‐5 catalyst.…”

Section: Introductionmentioning

confidence: 99%

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Selective production of green light olefins by catalytic conversion of bio‐oil with Mg/HZSM‐5 catalyst

Hong

Gong

Fan

et al. 2012

J of Chemical Tech & Biotech

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BACKGROUND : Light olefins are the basic feedstocks for the petrochemical industry. So far, the olefins yield from bio‐oil is noticeably lower than that from methanol, ethanol and naphtha, and thereby needs to be improved by optimizing catalysts and cracking conditions. The main purpose of this work is to selectively produce light olefins through the catalytic cracking of bio‐oil using the magnesium modified HZSM‐5 catalyst. RESULTS Catalytic conversion of bio‐oil and its model compounds into light olefins was performed using the Mg/HZSM‐5 catalyst. The highest olefins yield from bio‐oil was 0.25 kg olefins (kg−1 bio‐oil) with a carbon yield of 59.3 C‐mol% and nearly complete bio‐oil conversion. The reaction conditions and addition of magnesium into the HZSM‐5 zeolite can be used to control both olefins yield and selectivity. In addition, the yield of light olefins from the pyrolysis of bio‐oil is much lower than the level from bio‐oil catalytic cracking. CONCLUSION Moderately increasing the medium acid sites through addition of Mg into the zeolite effectively enhanced olefins selectivity and improved catalyst stability. The production of light olefins from bio‐oil is closely associated with the chemical composition and hydrogen to carbon effective ratios of feedstock. Copyright © 2012 Society of Chemical Industry

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Selective production of green light olefins by catalytic conversion of bio‐oil with Mg/HZSM‐5 catalyst

Hong

Gong

Fan

et al. 2012

J of Chemical Tech & Biotech

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“…Bio‐oil was produced by the fast pyrolysis of biomass in a circulating fluidized bed with a capacity of 120 kg h −1 oil at our lab . The main elemental composition and chemical constituents of the bio‐oil are summarized in Table .…”

Section: Methodsmentioning

confidence: 99%

Directional synthesis of liquid higher olefins through catalytic transformation of bio‐oil

Yuan

Fan

et al. 2013

J of Chemical Tech & Biotech

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BACKGROUND: Catalytic transformation of bio-oil into higher olefins can provide valuable bio-fuels and chemicals used in the manufacture of high-octane gasoline, detergents, plasticizers and other petrochemicals. This work explores the production of higher olefins from bio-oil through catalytic cracking of bio-oil along with light olefins oligomerization. RESULTS: For bio-oil catalytic cracking, the olefins yield reached 43.8 C-mol% with near-complete bio-oil conversion. The oxygenated organic compounds in bio-oil go through deoxygenation, cracking and hydrogen transfer reactions and form light olefins over the zeolite acid sites. For the oligomerization of light olefins, the highest selectivity and yield of C 5+ olefins over the LTGO catalyst reached 85.4 C-mol% and 326.7 g kg −1 cata h −1 , respectively. Main products below 300 • C were C 6 = -C 12 = olefins, originating from light olefin oligomerization. The influences of the reaction conditions were investigated in detail, and the reaction mechanism was addressed.CONCLUSION: Bio-oil can be catalytically converted to C 2 = -C 4 = light olefins over HZSM-5, and further selectively transformed to C 5 + high olefins via the oligomerization of light olefins over LTGO. The transformation of bio-oil to higher olefins may be useful for the production of bio-fuels and high value chemicals using renewable biomass.

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“…These studies often combine biomass gasification and conventional methanol synthesis with, in some cases, electricity production [5,6,11,13]. Xu et al conducted an experimental study and demonstrated methanol production from biomass by reforming pyrolysis liquids into H 2 and CO 2 followed by catalytic syngas conditioning to convert part of the CO 2 into CO [14]. Methanol synthesis was conducted in a packed bed reactor, with an overall carbon conversion of around 23% (corresponding with a methanol production rate of 1.3 kg methanol/kg catalyst/h).…”

Section: Renewable Methanolmentioning

confidence: 99%

Biomethanol from Glycerol

Bennekom¹,

Venderbosch²,

Heeres³

2012

Biodiesel - Feedstocks, Production and Applications

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High efficient conversion of CO2-rich bio-syngas to CO-rich bio-syngas using biomass char: a useful approach for production of bio-methanol from bio-oil

Cited by 44 publications

References 28 publications

Selective production of green light olefins by catalytic conversion of bio‐oil with Mg/HZSM‐5 catalyst

Selective production of green light olefins by catalytic conversion of bio‐oil with Mg/HZSM‐5 catalyst

Directional synthesis of liquid higher olefins through catalytic transformation of bio‐oil

Biomethanol from Glycerol

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